عَنْ جَابِرٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِذَا خَطَبَ أَحَدُكُمُ الْمَرْأَةَ فَإِنِ اسْتَطَاعَ أَنْ يَنْظُرَ إِلَى مَا يَدْعُوهُ إِلَى نِكَاحهَا فَلْيفْعَل» . رَوَاهُ أَبُو دَاوُد

Buraida reported God's Messenger as saying to ‘Ali, “Do not give a second look, ‘Ali, for while you are not to blame for the first you have no right to the second.” Ahmad, Tirmidhi, Abu Dawud and Darimi transmitted it.